package com.neo.office.server.task;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.neo.office.server.config.data.MailConstants;
import com.neo.office.server.domain.entity.Employee;
import com.neo.office.server.domain.entity.MailLog;
import com.neo.office.server.service.EmployeeService;
import com.neo.office.server.service.MailLogService;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;
import java.util.List;

/**
 * 邮件发送定时任务
 */
@Component
public class MailTask {

    @Autowired
    private MailLogService mailLogService;

    @Autowired
    private EmployeeService employeeService;

    @Autowired
    private RabbitTemplate rabbitTemplate;

    /**
     * 邮件发送定时任务
     * 10秒执行一次
     */
    @Scheduled(cron = "0/10 * * * * ?")
    public void mailTask(){
        List<MailLog> list = mailLogService.list(new QueryWrapper<MailLog>()
                .eq("status", 0)
                .lt("tryTime", LocalDateTime.now()));

        list.forEach(mailLog -> {
            //如果重试次数超过3次，更新状态为投递失败,不再重试
            if (mailLog.getCount() >= 3){
                mailLogService.update(new UpdateWrapper<MailLog>()
                        .set("status",2)
                        .eq("msgId",mailLog.getMsgId()));
            }
            mailLogService.update(new UpdateWrapper<MailLog>()
                    .set("count",mailLog.getCount() + 1)
                    .set("updateTime",LocalDateTime.now())
                    .set("tryTime",LocalDateTime.now().plusMinutes(MailConstants.TIME_OUT))
                                                      .eq("msgId",mailLog.getMsgId()));
            //发送信息
            Employee employee = employeeService.getEmployee(mailLog.getEid()).get(0);
            rabbitTemplate.convertAndSend(MailConstants.MAIL_EXCHANGE_NAME,
                                          MailConstants.MAIL_ROUTING_KEY_NAME,
                                          employee,new CorrelationData(mailLog.getMsgId()));

        });
    }
}
